FWIW, since I got the update, my battery life has been terrible, the worst since the phone came out. It completely died on me for the first time in months (the last time that happened it was intentional to cycle the battery), and after 9 hours today, my battery is at the point it previously only hit after about 15 previously.
Edit: Also experiencing SD card problems for the first time.
Edit: Also experiencing SD card problems for the first time.